No, we haven’t solved copy/paste references at the moment - we will update the thread here as well when we do some work on this!
Right now the inline references are a decoration, but if that reference gets lost (e.g. through a cut/delete), the comments fall back to being referenced at the “block” level, which seems ok for now. The sidenote framework does work with multiple inline references pointing to the same note/comment though, so looking forward to getting this feature in. I will see if there is anything we can do to make it generalizable.